nominate the most conservative candidate who is electable. as chief political correspondent carl cameron reports, there are many democrats who say their party needs to adopt a corollary rule. nominate the most liberal candidate or risk losing relevance. >> reporter: unemployment has finally dipped, but wall street got a big bailout. most bush tax cuts remain and much of the obama agenda is stalled. progressives blame the president and weak party leadership. >> democrats didn't push hard enough to create an agenda that would put america back to work, rebuild our infrastructure, get us out of the wars, and to take us in a new direction on trade and push for civil liberties. >> reporter: but the think tank known as third wave ripped into far left economic pop ulists, warning in a hard-hitting op-ed that, nothing would be more disastrous for democrats. the political problems of liberal populism are bad enough. the movement relies on a, we can have it all fantasy. when the tea party pushed the gop right, democrats lost the house majority in the bi